For clarity: 'procyclidine' is a drug that blocks acetylcholine's action, administered to treat Parkinson's symptoms and the side-effects of anti-dopaminergic antipsychotics, both mental and physical.
Another FYI: this conversation is an image, not text, and probably shows as an illegible column. To view it legibly, right-click on it, and click 'open image in new tab'. Then: click on the tab, and then click on the picture, and it will enlarge it to the full width of the screen so that it can be read.
